42216904 has 16 divisors (see below), whose sum is σ = 80841600. Its totient is φ = 20659152.

The previous prime is 42216893. The next prime is 42216929. The reversal of 42216904 is 40961224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55764 + ... + 56515.

It is an arithmetic number, because the mean of its divisors is an integer number (5052600).

Almost surely, 2^42216904 is an apocalyptic number.

It is an amenable number.

42216904 is a deficient number, since it is larger than the sum of its proper divisors (38624696).

42216904 is a wasteful number, since it uses less digits than its factorization.

42216904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112332 (or 112328 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 42216904 is about 6497.4536550867. The cubic root of 42216904 is about 348.2000215325.

The spelling of 42216904 in words is "forty-two million, two hundred sixteen thousand, nine hundred four".